thin-film optical waveguide

2011 ◽  
Keyword(s):  
Thin Film ◽  
Optical Waveguide

Transparency Improvement of SiCO Thin Film for Optical Waveguide with Reactive Sputtering Method

2020 ◽  
Vol 140 (12) ◽  
pp. 369-373
Author(s):  
Hiroyuki Nikkuni ◽  
Chizuru Numata ◽  
Ryoto Yamaji ◽  
Hiroshi Ito ◽  
Yoshio Kawamata
Keyword(s):  
Thin Film ◽  
Optical Waveguide ◽  
Reactive Sputtering

scholarly journals Microfluidic detection and analysis by integration of thermocapillary actuation with a thin-film optical waveguide

2005 ◽  
Vol 86 (18) ◽  
pp. 184101 ◽  
Author(s):  
Joseph P. Valentino ◽  
Sandra M. Troian ◽  
Sigurd Wagner
Keyword(s):  
Thin Film ◽  
Optical Waveguide

Thin film optical waveguide type UV sensor using a photochromic molecular device, spirooxazine

2001 ◽  
Vol 117 (1-3) ◽  
pp. 131-133 ◽  
Author(s):  
Kyeongsik Ock ◽  
Namju Jo ◽  
Jaeho Kim ◽  
Sunghoon Kim ◽  
Kwangnak Koh
Keyword(s):  
Thin Film ◽  
Optical Waveguide ◽  
Molecular Device ◽  
Uv Sensor ◽  
Waveguide Type

Highly sensitive free-base-porphyrin-based thin-film optical waveguide sensor for detection of low concentration NO2 gas at ambient temperature

2018 ◽  
Vol 53 (15) ◽  
pp. 10822-10834 ◽  
Author(s):  
Hannikezi Abudukeremu ◽  
Nuerguli Kari ◽  
Yuan Zhang ◽  
Jiaming Wang ◽  
Patima Nizamidin ◽  
...  
Keyword(s):  
Thin Film ◽  
Ambient Temperature ◽  
Optical Waveguide ◽  
Free Base ◽  
Low Concentration ◽  
Highly Sensitive ◽  
Waveguide Sensor

Dispersion of zinc sulfide thin film on slab-type optical waveguide

1982 ◽  
Vol 21 (19) ◽  
pp. 3552 ◽  
Author(s):  
K. Sasaki ◽  
Y. Kudo ◽  
A. Fukuda ◽  
H. Awata ◽  
O. Hamano
Keyword(s):  
Thin Film ◽  
Zinc Sulfide ◽  
Optical Waveguide

Low Threshold Gain-Narrowing Characteristics of Fluorescent Styrylbenzene Derivatives as a Guest Molecule in an Organic Thin-Film Optical Waveguide

2000 ◽  
Vol 29 (7) ◽  
pp. 754-755 ◽  
Author(s):  
Yasuaki Okumura ◽  
Michifumi Nagawa ◽  
Chihaya Adachi ◽  
Makoto Satsuki ◽  
Sadaharu Suga ◽  
...  
Keyword(s):  
Thin Film ◽  
Optical Waveguide ◽  
Guest Molecule ◽  
Organic Thin Film ◽  
Gain Narrowing ◽  
Low Threshold ◽  
Threshold Gain

Quasioptics of second‐order Bragg interaction in a thin film optical waveguide

1996 ◽  
Vol 79 (9) ◽  
pp. 6741-6749 ◽  
Author(s):  
Daniel W. C. So ◽  
S. R. Seshadri
Keyword(s):  
Thin Film ◽  
Optical Waveguide ◽  
Second Order

scholarly journals An Integrated Germanium-Based THz Impulse Radiator with an Optical Waveguide Coupled Photoconductive Switch in Silicon

Micromachines ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 367 ◽  
Author(s):  
Peiyu Chen ◽  
Mostafa Hosseini ◽  
Aydin Babakhani
Keyword(s):  
Thin Film ◽  
Optical Waveguide ◽  
Low Cost ◽  
Beam Steering ◽  
Optical Excitation ◽  
Silicon On Insulator ◽  
Excitation Wavelength ◽  
Coupling Mechanism ◽  
Photoconductive Switch ◽  
Silicon Lens

This paper presents an integrated germanium (Ge)-based THz impulse radiator with an optical waveguide coupled photoconductive switch in a low-cost silicon-on-insulator (SOI) process. This process provides a Ge thin film, which is used as photoconductive material. To generate short THz impulses, N++ implant is added to the Ge thin film to reduce its photo-carrier lifetime to sub-picosecond for faster transient response. A bow-tie antenna is designed and connected to the photoconductive switch for radiation. To improve radiation efficiency, a silicon lens is attached to the substrate-side of the chip. This design features an optical-waveguide-enabled “horizontal” coupling mechanism between the optical excitation signal and the photoconductive switch. The THz emitter prototype works with 1550 nm femtosecond lasers. The radiated THz impulses achieve a full-width at half maximum (FWHM) of 1.14 ps and a bandwidth of 1.5 THz. The average radiated power is 0.337 μ W. Compared with conventional THz photoconductive antennas (PCAs), this design exhibits several advantages: First, it uses silicon-based technology, which reduces the fabrication cost; second, the excitation wavelength is 1550 nm, at which various low-cost laser sources operate; and third, in this design, the monolithic excitation mechanism between the excitation laser and the photoconductive switch enables on-chip programmable control of excitation signals for THz beam-steering.

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